Home / 140,989.48-194,565.75-80,559.94

Finding the Fourth Proportional to 140,989.48, 194,565.75 and 80,559.94

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Solution

The fourth proportional to 140,989.48, 194,565.75 and 80,559.94 is: 111,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,989.48 : 194,565.75 = 80,559.94 : x
  2. Step 2: Convert to fraction form
    140,989.48/194,565.75 = 80,559.94/x
  3. Step 3: Cross multiply
    140,989.48x = 194,565.75 × 80,559.94
  4. Step 4: Simplify right side
    140,989.48x = 15,674,205,146.06
  5. Step 5: Solve for x
    x = 15,674,205,146.06/140,989.48
  6. Step 6: Final answer
    x = 111,172.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.